Spin a wheel whose odds you can read for a growing payoff, or bank what you've built before a bust slot wipes it, the expected value is right there to guide you.
Each round, choose to spin for more or bank your stash. The wheel shows its odds: most slots add to your round stake, but a bust slot zeros everything you've built that round. Bank to lock your winnings into your safe stash before a bust hits. Between rounds you draft a modifier card that reshapes the wheel, and the displayed expected value tells you when the odds have turned for or against you.
Odds On teaches probability and expected value through push-your-luck spins where the underlying math is always shown, so risk becomes calculation.
Spin again or bank the stash, with a bust slot that zeros the round, is the press-your-luck structure, and it is a clean exercise in expected value.
The wheel showing its own odds is the original design: the information is never hidden from you.
That removes luck as an excuse and leaves the actual decision. Each additional spin has a computable expected gain that turns negative once the stake is large enough relative to the bust chance, so there is a correct stopping point — and the interesting fact is how rarely it matches where people feel like stopping.
Odds On is an original, free browser game that teaches probability and expected value through push-your-luck spins where the math is always shown. Play instantly, no install needed.